摘要:
An ink composition, and a method of forming a pattern, a color filter and a method of manufacturing the color filter using the same. The ink composition includes a binder resin, a multifunctional monomer having an ethylenic unsaturated double bond, a coloring agent, a polymerization initiator containing a certain positive ion and a solvent. Therefore, the composition has excellent coating property and chemical resistance and also an improved adhesion to a printing member, and thus the ink composition may be useful in forming a precise micropattern using a roll printing method, particularly a reversed printing method.
摘要:
Disclosed is an apparatus and method for estimating a direction of arrival (DOA) of a signal, which improves DOA estimation performance of a reception signal having a low signal to interference and noise ratio (SINR) in a communication system. In the method, a received signal is converted into a signal of a frequency region. A noise signal is separated from the signal converted into the signal of the frequency region. A noise region is filtered by setting an occupied bandwidth from the signal having the noise signal separated therefrom. A DOA of the signal obtained through the filtering of the noise region is estimated.
摘要:
Provided is a method of selecting a white Gaussian noise sub-band using singular value decomposition (SVD). The method includes selecting a first frequency band, verifying whether a signal is included in the selected first frequency band, determining the first frequency band as a target measurement frequency when the signal is not included in the selected first frequency band, and measuring a background radio noise in the determined target measurement frequency.
摘要:
In a thinner composition and a method of forming a photosensitive film, the thinner composition includes about 50 to about 90% by weight of propylene glycol monomethyl ether acetate, about 1 to about 20% by weight of propylene glycol monomethyl ether, about 1 to about 10% by weight of γ-butyrolactone, and about 1 to about 20% by weight of n-butyl acetate. The thinner composition may have a proper volatility and an improved ability to dissolve various types of photosensitive materials, and thus the thinner composition may be usefully employed in an edge bead rinse process, a rework process or a pre-wetting process.
摘要:
An etchant according to exemplary embodiments of the present invention includes about 0.5 wt % to about 20 wt % of persulfate, about 0.01 wt % to about 2 wt % of a fluorine compound, about 1 wt % to about 10 wt % of inorganic acid, about 0.5 wt % to about 5 wt % of a cyclic amine compound, about 0.1 wt % to about 5 wt % of a chlorine compound, about 0.05 wt % to about 3 wt % of copper salt, about 0.1 wt % to about 10 wt % of organic acid or organic acid salt, and water.
摘要:
An etchant includes: 5 to 20 wt % of persulfate, 1 to 10 wt % of at least one compound of an inorganic acid, an inorganic acid salt, or a mixture thereof, 0.3 to 5 wt % of a cyclic amine compound, 1 to 10 wt % of at least one compound of an organic acid, an organic acid salt, or a mixture thereof, 0.1 to 5 wt % of p-toluenesulfonic acid, and water, based on the total weight of the etchant. A copper-titanium etchant further includes 0.01 to 2 wt % of a fluoride-containing compound. A method of forming a display device using the etchant, and a display device, are also disclosed.
摘要:
Provided are a photoresist composition having superior adhesion to an etch target film, a method of forming a pattern by using the photoresist composition, and a method of manufacturing a thin-film transistor (TFT) substrate. The photoresist composition includes an alkali-soluble resin; a photosensitive compound; a solvent; and 0.01 to 0.1 parts by weight of a compound represented by Formula 1: wherein R is one of hydrogen, an alkyl having 1 to 10 carbon atoms, a cycloalkyl having 4 to 8 carbon atoms, and a phenyl group.
摘要:
A composition for removing photoresist, including an alkyl ammonium fluoride salt in an amount ranging from about 0.5 weight percent to about 10 weight percent, based on a total weight of the composition; an organic sulfonic acid in an amount ranging from about 1 weight percent to about 20 weight percent, based on the total weight of the composition; and a lactone-based solvent in an amount ranging from about 70 weight percent to about 98.5 weight percent, based on the total weight of the composition.